EXERCISE 2: Skeletal Muscle Physiology Student Name: ___________________________ Student ID#: _____________________ Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers
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joints (known also as rotary joints). These joints allow for rotation around an axis. There is a pivot joint near the top of your spine that allows your head to move from side to side. Hinge joints. This type of joint can open and close like a door. Your elbow is a hinge joint. Your biceps and triceps muscles are basically two people standing on opposite sides of a wall (the humerus‚ or upper-arm bone)‚ each with one hand reaching over to its respective side of a door (the bones of the lower arm). The
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degeneration of muscles is causes by progressive damage and loss of muscle cells with linked to weakness. There is a decrease in the force which muscle can exert. Our muscle become tired and it will cause of muscle fatigue. There are common causes why our muscles become weak. Lack of use is the most common causes of muscle weakness. Muscles become chunky and more floppy because muscles are not used then the fibers within the muscles partially replaced with fat. Aging is another factor of muscle degeneration
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HOW MUSCLES GET THE ENERGY THEY NEED TO WORK 1) Muscle needs energy to contract and as stated previously the ‘universal energy currency’ of living systems is ATP (adenosine triphosphate). This is largely produced within mitochondria‚ organelles which are often referred to as the ‘powerhouse’ of the cell. The ATP that results is used to provide the power for the muscle fibres to contract. Contraction itself (i.e. actual shortening movement) occurs when a bond is broken between ATP and one of its
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After the American Revolution‚ many people who lived in the new America ( United States of America) envisioned themselves to have a life of equal opportunity and treatment but this was far from the truth. Life in the United States was in fact unchanged for the majority of people due to the lack of equal treatment and opportunity. Only the wealthy upper class elites were able to prosper and feel true freedom by voting in the elections. While the majority of people who lived in the new America were
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------------------------------------------------- ------------------------------------------------- How Competitive Forces Shape Strategy* The essence of strategy formulation is coping with competition. Yet it is easy to view competition too narrowly and too pessimistically. While one sometimes hears execu-tives complaining to the contrary‚ intense competition in an industry is neither coinci-dence nor bad luck. Moreover‚ in the fight for market share‚ competition is not manifested only in
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of the muscle away from the tibo-fibula bone while leaving the it attached to the knee and heel. The muscle was consistently moistened by Ringer’s solution throughout the entire experiment. The Achilles tendon was removed at the heel of the frog. The tibiofibular bone was cut below the knee and the femur below the knee (Frog Skeletal Muscle Experiement). The baseline value of the force transducer was set to zero. This zeroing procedure was conducted at the start of each exercise. The force transducer
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Cardiac This is an involuntary muscle‚ found solely in the walls of the heart‚ as well as in the walls of the blood vessels. This sort of muscle has similarities with the skeletal muscles‚ because it is striated. Furthermore‚ it has slight similarities to the smooth muscles‚ because its contractions are not under conscious control. On the other hand this type of muscle is highly specialised. It is under the control of the autonomic nervous system‚ however‚ even without nervous imput contractions
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Laboratory – Muscle Physiology A. MUSCLE TONUS Observations‚ Report and Conclusion: A. Define muscle tonus and give its importance * Muscle tonus refers to a state of slight muscular contraction maintained by synchronous impulses of low frequency‚ discharged by the spinal motor neurons. * Reflex in nature. * Muscle tonus is a small amount of tension in the muscle due to weak‚ involuntary contractions of its motor units. Muscle tonus is important in a sense that it governs the
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When trying to reach your muscle growth goals‚ it is important that you have a customized body building workouts that are meant for you. What it means is that you have to take into consideration of your body type and genes‚ and how your metabolism rate is like when determining your workout routine as well as your muscle building diet. Following blindly without being able to improvise and improve will be as effective as compared to body building workouts just for you. One common mistake that most
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